charming young man

1: a term used to describe a boy or man, typically below 27 years of age, who is delightful, respectful, kind and polite.
2: a sarcastic term denoting to a boy or man, typically below 27 years of age, who is the exact opposite of delightful, respectful, kind and polite.

1: Mohammed is always holding the door open for other people, and he's good at cheering people up when they're feeling upset or have been diagnosed with terminal cancer. What a charming young man!
2: Person A: Mohammed isn't in school because he was suspended for setting toilet roll on fire. Person B: No, that was last time. This time he was suspended for physically abusing a teacher. Person C: What a charming young man!